Solar subsidies Solar power seems to have a lot going for it. It doesn’t contribute to climate change and it’s a renewable source of energy. So why are so few people in Australia choosing solar power? Focus Questions 1] 2] 3] 4] 5] 6] 7] 8] Describe what is happening at Mawson Lakes School. What are some advantages of solar power? What are solar cells made from? How are they made? Why aren’t more people installing solar cells to generate energy? Why is it difficult for solar power to compete with coal? What happened at Pittwater High School in Sydney? What are some people saying the Government should do to encourage solar energy use? 9] Why is it difficult for solar power to compete with coal? 10] Do you think the Government is doing enough to encourage people to use solar power? Explain your answer. EPISODE 10 TH 6 MAY 2008 Learning Area Science and Society and Environment Key learning Students will develop an understanding of how the sun is used to generate energy and what renewable energy is. Is the sun the answer? Students will conduct a simple experiment that explores how solar energy converts to heat energy. Ask students to make some predictions about what they think might happen before they begin the experiment. 1] Place a balloon over the opening of each drink bottle. Make sure it is a tight fit. 2] Put the bottles in a warm, sunny place or under a heat lamp (make sure the bottles are the same distance from the lamp). 3] Record how long it takes to see a change in the balloons. Students will need the following to conduct the experiment: 2 plastic drink bottles – 1 painted black the other wrapped in aluminium foil 2 balloons What happened to the balloons? Why do you think it happened? What do you think would happen if the bottles were painted different colours? © ABC 2008 Heat lamp What is renewable energy? Ask students to come up with a description of what renewable and nonrenewable energy is. Working in pairs, students share their definitions. Students now need to research what renewable and non-renewable energy is and add to or change their own definitions. What are some other renewable energy resources other than solar energy? Students share their findings with the class. Further investigations Do a solar audit of the school. Explore whether solar power is used in the school or classrooms. Create a poster or advertising brochure persuading people to use solar power. The answer is solar power. What are five questions? Investigate which regions of the world would be best for generating solar power? Related Research Links Labor Government’s solar plan for schools http://www.abc.net.au/news/stories/2007/10/26/2071678.htm?site=electio ns/federal/2007 ABC Catalyst website – new solar cells could be cheaper http://www.abc.net.au/catalyst/stories/s1865651.htm Solar in schools – Victorian government website http://www.sustainability.vic.gov.au/www/html/2398-solar-in-schools.asp Using solar in schools to help reduce carbon emissions http://www.solarschools.net/nsw/about.aspx# About solar energy http://www.kidcyber.com.au/topics/solar.htm Time magazine for kids – information about solar energy http://www.timeforkids.com/TFK/kids/ns/article/0,28391,90777,00.html © ABC 2008